/*背景图引入*/
body{
    background: url("../login-img/login-bg.gif");
    background-repeat: no-repeat;
    background-size: 100%;
}
/*登录界面外部样式*/
.frist{
    width: 594px;
    height: 358px;
    background: url("../login-img/login-bg.png");
    top: 50%;
    left: 50%;
    margin: -179px 0px 0px -297px;
    position: absolute;
}
/*用户名图片*/
.second{
    background: url("../login-img/hu.png");
    width: 160px;
    height: 34px;
    margin-top: 78px;
    background-repeat: no-repeat;

}
/*密码图片*/
.third{
    background: url("../login-img/mima.png");
    display: inline-block;
    width: 160px;
    height: 34px;
    background-repeat: no-repeat;

}
/*验证码*/
.forth{
    background: url("../login-img/mima.png");
    width: 160px;
    height: 34px;
    background-repeat: no-repeat;
}
/*登录*/
.fifth {
    width: 71px;
    height: 32px;
}

input{
    outline: none;
}